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Network performance is slow when using ssh based transfer commands or Endpoint VPN client

APPLIES TO:
  • Parallels Desktop 10 for Mac Home Edition
  • Parallels Desktop 9 for Mac Standard Edition

Symptoms

  • When running ssh based transfer commands (scp, sftp, rsync) from Windows 7 to Linux machines we experience a very slow communication (~100 Bytes/Sec) while in windows speed is between 250KB/sec to 2.5MB/sec (depending on location of target Linux machines).
  • Files upload speed through VPN is unstable.

Cause

Virtual machine misconfiguration.

Resolution

  1. Open Windows virtual machine configuration.
  2. Switch to the Hardware tab > Network 1 > NIC Type > Please choose Realtek adapter. alttext
  3. Please check the issue.



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